Finding the Fourth Proportional to 10,212.09, 15,319.76 and 3,550.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,212.09 : 15,319.76 = 3,550.62 : x
2. Step 2: Convert to fraction form
   10,212.09/15,319.76 = 3,550.62/x
3. Step 3: Cross multiply
   10,212.09x = 15,319.76 × 3,550.62
4. Step 4: Simplify right side
   10,212.09x = 54,394,646.25
5. Step 5: Solve for x
   x = 54,394,646.25/10,212.09
6. Step 6: Final answer
   x = 5,326.49